Finding the Fourth Proportional to 135.36, 203.49 and 104.94
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Solution
The fourth proportional to 135.36, 203.49 and 104.94 is: 157.76
Step by Step Solution
- Step 1: Write the proportion equation
135.36 : 203.49 = 104.94 : x - Step 2: Convert to fraction form
135.36/203.49 = 104.94/x - Step 3: Cross multiply
135.36x = 203.49 × 104.94 - Step 4: Simplify right side
135.36x = 21,354.24 - Step 5: Solve for x
x = 21,354.24/135.36 - Step 6: Final answer
x = 157.76
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.